3. A 3-year-old boy is brought to the emergency department by his mother, who witnessed him putting a coin into his mouth while playing with a jar of coins. The child is asymptomatic and interactive, and is playing in the emergency department. He swallows water without any difficulty. Which of the following is the best course of action for this child?

5. A 2 year-old child swallowed a button battery 4 hours prior to arrival at the emergency department. He is asymptomatic. Plain radiographs reveal the battery to be located in the stomach. Which of the following options describes the most appropriate management of this child at this time?

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